Improvement in mop-heads



H. H.. MASON.-

Mor-HEAD.

No.181,9'58. Patented Sept. 5.1876.

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UNITED STATES PATENT (")TTIcEu HENRY H. MASON, OF SPRINGFIELD, VERMONT.

IMPROVEMENT IN MOP-HEADS.

Specitication forming part of Letters Patent No. [81,958, datedSeptember 5, 1876; application filed June 0,1876.

To all whom it may concern Be it known that I, HENRY HfMAsON, of Springfield, in the county of Windsor and State of Vermont, have invented a new and useful Improvement in Mop-Heads and that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specication.

This invention is in the nature of an improvement in mop-heads; and the invention consists in a mop-head constructed with amovable jaw or clamp having a screw-shank centrally afxed thereto, which passes through a screw-nut and into the socket for the handle, which is secured to the fixed jaw or -framo of the mop-head, as is hereinafter more particularly shown and described.

In the accompanying sheetof drawings, Figure l is a side view ot' my invention, and Fig. 2 an edge view, partly in section.

Similar letters of reference indicate like parts in both iigures.

A represents a mop-head, the fixed jaw B of which is, with the sides a, cast with the socket C. This socket is cast hollow for the reception of the handle D, and through the upper end of the socket O is cast an opening, b. Fitted between the sides a is an adjustable jaw or clamp, E. Secured to this clamp, midway between its extremities, is a screwstem, F. This screw-stein passes through the opening b in the upperend of the socket C, and also through a screw-nut, G, which nut has screw-threads formed within it corresponding to the screw-threads on the screwstem F, so that the screw-nut may revolve on the screw-stem between the adjustable jaw and upper end ofthe socket C.

As a matter of economy in the construction of my mop-head, the screw-stem F and the adjustable jaw are cast together, the threads being cast on the stem, and also in the screwnut G.

To confine the adjustable clamp E in its proper position, lugs c are cast on the extremities of the jaw or clamp, projecting at different angles from the end of the jaw, so that the sides a a, which are made angular for that purpose, enter between the lugs c c, and act as guides for the adjustable jaw.

My mop-head being constructed substantially as above described, it is operated by revolving the screw-nut Gr, when the adjustable jaw Ewill clamp or unclamp the mop-cloth between it and the fixed jaw B, as the screwnut may be turned to the right or left. The screw-stem F, entering into the socket O, not only is protected from injury by so doing, but

.theopening b of the socket also acts as a guide therefor, and tends to steady the movement of the screw-stem.

Having thus described the construction and operation of my invention, what I claim as new, and desire to secure by Letters Patent, 1s-

1. Amop-head constructed with an adjustable clamp, to which is affixed a screw-stem, which passes into the socket for the handle, and which has an operating-nut placed between the under side of' the adjustable clamp and the upper end of the socket, substantially as and for tbe purpose described.

2. In a mop-head, an operating nut, working on a screw-shank, and placed between the under side of the adjustable clamp and the upper end of the socket, in combination with a socket having a perforation, into which the screw-stem enters, substantially as and for the purpose described.

HENRY H. MASON. 

